What forces apply tension to the standing block?

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Multiple Choice

What forces apply tension to the standing block?

Tension in a standing block (a fixed pulley) comes from the rope being pulled from both ends. The rope carries a force due to the weight of the load on one end and an external pull on the other end (the fall line you apply). In an ideal rope and pulley, the tension is the same throughout, so the standing block is pulled from two sides by that same tension, each side originating from those two forces. Wind load and the rope’s own weight can affect the system but are not the primary sources of tension in this basic setup, and the force you apply with your hand on the fall line is the driver of the tension on that end. So the two forces that establish the tension on the standing block are the weighted load and the applied force on the fall line.

Tension in a standing block (a fixed pulley) comes from the rope being pulled from both ends. The rope carries a force due to the weight of the load on one end and an external pull on the other end (the fall line you apply). In an ideal rope and pulley, the tension is the same throughout, so the standing block is pulled from two sides by that same tension, each side originating from those two forces. Wind load and the rope’s own weight can affect the system but are not the primary sources of tension in this basic setup, and the force you apply with your hand on the fall line is the driver of the tension on that end. So the two forces that establish the tension on the standing block are the weighted load and the applied force on the fall line.

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